Construct validation of the portuguese version of the restraint scale

Detalhes bibliográficos
Autor(a) principal: Carvalho, J.
Data de Publicação: 2016
Outros Autores: Marques, M. M., Ferreira, M. B., Lima, M. L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10071/12846
Resumo: The main purpose of this study was to adapt the Restraint Scale (RS) to Portuguese and examine its psychometric properties, specifically its construct validity. Method: In this study, 238 normal-weight adults (82% women; Mean age = 36.6, SD = 15.0) participated in an online survey containing measures of Restraint Scale, Three Factor Eating Questionnaire, Dutch Eating Behaviour Questionnaire, and Body Dissatisfaction and Drive for Thinness scales. Results: Exploratory factor analyses corroborated the two-factors structure found in previous studies, in particular when three items without clear factorial assignment and low correlation were excluded. A final two-factors version of the RS containing seven items presented a very good fit to the measurement model and good internal consistency. Confirmatory factor analysis of the 7-items RS in relation to a three-factor model of overeating, dieting and body dissatisfaction measures revealed that the RS was the only restraint measure loading in all three factors. Conclusion: This suggests that the 7-items Portuguese version of the RS has good psychometric properties and unique features that lend it appropriate to identify and study unsuccessful chronic dieters.
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spelling Construct validation of the portuguese version of the restraint scaleRestraint scaleConstruct validityDietingOvereatingBody dissatisfactionThe main purpose of this study was to adapt the Restraint Scale (RS) to Portuguese and examine its psychometric properties, specifically its construct validity. Method: In this study, 238 normal-weight adults (82% women; Mean age = 36.6, SD = 15.0) participated in an online survey containing measures of Restraint Scale, Three Factor Eating Questionnaire, Dutch Eating Behaviour Questionnaire, and Body Dissatisfaction and Drive for Thinness scales. Results: Exploratory factor analyses corroborated the two-factors structure found in previous studies, in particular when three items without clear factorial assignment and low correlation were excluded. A final two-factors version of the RS containing seven items presented a very good fit to the measurement model and good internal consistency. Confirmatory factor analysis of the 7-items RS in relation to a three-factor model of overeating, dieting and body dissatisfaction measures revealed that the RS was the only restraint measure loading in all three factors. Conclusion: This suggests that the 7-items Portuguese version of the RS has good psychometric properties and unique features that lend it appropriate to identify and study unsuccessful chronic dieters.PsychOpen2017-04-07T14:47:04Z2016-01-01T00:00:00Z20162019-03-26T18:24:30Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/12846eng2182-438X10.5964/pch.v5i2.170Carvalho, J.Marques, M. M.Ferreira, M. B.Lima, M. L.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:57:22Zoai:repositorio.iscte-iul.pt:10071/12846Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:29:35.384473Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Construct validation of the portuguese version of the restraint scale
title Construct validation of the portuguese version of the restraint scale
spellingShingle Construct validation of the portuguese version of the restraint scale
Carvalho, J.
Restraint scale
Construct validity
Dieting
Overeating
Body dissatisfaction
title_short Construct validation of the portuguese version of the restraint scale
title_full Construct validation of the portuguese version of the restraint scale
title_fullStr Construct validation of the portuguese version of the restraint scale
title_full_unstemmed Construct validation of the portuguese version of the restraint scale
title_sort Construct validation of the portuguese version of the restraint scale
author Carvalho, J.
author_facet Carvalho, J.
Marques, M. M.
Ferreira, M. B.
Lima, M. L.
author_role author
author2 Marques, M. M.
Ferreira, M. B.
Lima, M. L.
author2_role author
author
author
dc.contributor.author.fl_str_mv Carvalho, J.
Marques, M. M.
Ferreira, M. B.
Lima, M. L.
dc.subject.por.fl_str_mv Restraint scale
Construct validity
Dieting
Overeating
Body dissatisfaction
topic Restraint scale
Construct validity
Dieting
Overeating
Body dissatisfaction
description The main purpose of this study was to adapt the Restraint Scale (RS) to Portuguese and examine its psychometric properties, specifically its construct validity. Method: In this study, 238 normal-weight adults (82% women; Mean age = 36.6, SD = 15.0) participated in an online survey containing measures of Restraint Scale, Three Factor Eating Questionnaire, Dutch Eating Behaviour Questionnaire, and Body Dissatisfaction and Drive for Thinness scales. Results: Exploratory factor analyses corroborated the two-factors structure found in previous studies, in particular when three items without clear factorial assignment and low correlation were excluded. A final two-factors version of the RS containing seven items presented a very good fit to the measurement model and good internal consistency. Confirmatory factor analysis of the 7-items RS in relation to a three-factor model of overeating, dieting and body dissatisfaction measures revealed that the RS was the only restraint measure loading in all three factors. Conclusion: This suggests that the 7-items Portuguese version of the RS has good psychometric properties and unique features that lend it appropriate to identify and study unsuccessful chronic dieters.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01T00:00:00Z
2016
2017-04-07T14:47:04Z
2019-03-26T18:24:30Z
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language eng
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10.5964/pch.v5i2.170
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